<template>
    <div>
        <el-row :gutter="20" class="mgb20">
            <el-col :span="6">
                <el-card>
                    <div class="grid-content">
                        <div class="grid-cont-center">
                            <div class="grid-num">{{consumerCount}}</div>
                            <div>用户总数</div>
                        </div>
                    </div>
                </el-card>
            </el-col>
            <el-col :span="6">
                <el-card>
                    <div class="grid-content">
                        <div class="grid-cont-center">
                            <div class="grid-num">{{songCount}}</div>
                            <div>歌曲总数</div>
                        </div>
                    </div>
                </el-card>
            </el-col>
            <el-col :span="6">
                <el-card>
                    <div class="grid-content">
                        <div class="grid-cont-center">
                            <div class="grid-num">{{singerCount}}</div>
                            <div>歌手数量</div>
                        </div>
                    </div>
                </el-card>
            </el-col>
            <el-col :span="6">
                <el-card>
                    <div class="grid-content">
                        <div class="grid-cont-center">
                            <div class="grid-num">{{songListCount}}</div>
                            <div>歌单数量</div>
                        </div>
                    </div>
                </el-card>
            </el-col>
        </el-row>
        <el-row :gutter="20" class="mgb20">
            <el-col :span="12">
                <h3 class="mgb20">用户性别比例</h3>
                <div style="background-color:white">
                    <ve-pie :data="consumerSex" :theme="options"></ve-pie>
                </div>
            </el-col>
            <el-col :span="12">
                <h3 class="mgb20">歌曲类型分布</h3>
                <div style="background-color:white">
                    <ve-histogram :data="songStyle"></ve-histogram>
                </div>
            </el-col>
        </el-row>
        <el-row :gutter="20" class="mgb20">
            <el-col :span="12">
                <h3 class="mgb20">歌手性别比例</h3>
                <div style="background-color:white">
                    <ve-pie :data="singerSex"></ve-pie>
                </div>
            </el-col>
            <el-col :span="12">
                <h3 class="mgb20">歌手国籍分布</h3>
                <div style="background-color:white">
                    <ve-histogram :data="country" :theme="options1"></ve-histogram>
                </div>
            </el-col>
        </el-row>
    </div>
</template>

<script>
    import {allSong, getConsumerList, getSingerList, getSongLists} from '../api/index'

    export default {
        data() {
            return {
                consumerCount: 0,       //用户总数
                songCount: 0,           //歌曲总数
                singerCount: 0,         //歌手数量
                songListCount: 0,        //歌单数量
                consumer: [],            //所有用户
                consumerSex: {           //按性别分类的用户数
                    columns: ['性别', '总数'],
                    rows: [
                        {'性别': '男', '总数': 0},
                        {'性别': '女', '总数': 0}
                    ]
                },
                options: {
                    color: ['#87cefa', '#ffc0cb']
                },
                options1: {
                    color: ['yellow']
                },
                songStyle: {           //按歌单风格分类
                    columns: ['风格', '总数'],
                    rows: [
                        {'风格': '华语', '总数': 0},
                        {'风格': '粤语', '总数': 0},
                        {'风格': '欧美', '总数': 0},
                        {'风格': '日韩', '总数': 0},
                        {'风格': 'BGM', '总数': 0},
                        {'风格': '轻音乐', '总数': 0},
                        {'风格': '乐器', '总数': 0}
                    ]
                },
                singerSex: {           //按性别分类的歌手数
                    columns: ['性别', '总数'],
                    rows: [
                        {'性别': '女', '总数': 0},
                        {'性别': '男', '总数': 0},
                        {'性别': '组合', '总数': 0},
                        {'性别': '不明', '总数': 0}
                    ]
                },
                country: {
                    columns: ['国籍', '总数'],
                    rows: [
                        {'国籍': '中国', '总数': 0},
                        {'国籍': '韩国', '总数': 0},
                        {'国籍': '日本', '总数': 0},
                        {'国籍': '美国', '总数': 0},
                        {'国籍': '新加坡', '总数': 0},
                        {'国籍': '意大利', '总数': 0},
                        {'国籍': '马来西亚', '总数': 0},
                        {'国籍': '西班牙', '总数': 0}
                    ]
                }
            }
        },
        created() {

        }, mounted() {
            this.getConsumer()
            this.getSong()
            this.getSinger()
            this.getSongList()
        },
        methods: {
            getConsumer() {                     //用户总数
                getConsumerList().then(({data: res}) => {
                    this.consumer = res.data.list
                    this.consumerCount = res.data.list.length
                    this.consumerSex.rows[0]['总数'] = this.setSex(1, this.consumer)
                    this.consumerSex.rows[1]['总数'] = this.setSex(0, this.consumer)
                })
            },
            setSex(sex, val) {              //根据性别获取用户数
                let count = 0
                for (let item of val) {
                    if (sex == item.sex) {
                        count++
                    }
                }
                return count
            },
            getSong() {                      //歌曲总数
                allSong().then(({data: res}) => {
                    this.songCount = res.data
                })
            },
            getSinger() {                      //歌手数量
                getSingerList().then(({data: res}) => {
                    this.singerCount = res.data.list.length
                    this.singerSex.rows[0]['总数'] = this.setSex(0, res.data.list)
                    this.singerSex.rows[1]['总数'] = this.setSex(1, res.data.list)
                    this.singerSex.rows[2]['总数'] = this.setSex(2, res.data.list)
                    this.singerSex.rows[3]['总数'] = this.setSex(3, res.data.list)
                    for (let item of res.data.list) {
                        this.getByCountry(item.location)
                    }
                })
            },

            getSongList() {                    //歌单数量
                getSongLists().then(({data: res}) => {
                    this.songListCount = res.data.list.length
                    for (let item of res) {
                        this.getByStyle(item.style)
                    }
                })
            },
            getByStyle(style) {              //根据歌单风格获取数量
                for (let item of this.songStyle.rows) {
                    if (style.includes(item['风格'])) {
                        item['总数']++
                    }
                }
            },
            getByCountry(location) {              //根据国籍获取数量
                for (let item of this.country.rows) {
                    if (location.includes(item['国籍'])) {
                        item['总数']++
                    }
                }
            }
        }
    }
</script>

<style scoped>
    .grid-content {
        display: flex;
        align-items: center;
        height: 50px;
    }

    .grid-cont-center {
        flex: 1;
        text-align: center;
        font-size: 14px;
        color: darkgray;
    }

    .grid-num {
        font-size: 30px;
        font-weight: bold;
    }
</style>